# Innovalyxx Sovereign Edge – memory.tool_context

> Innovalyxx Sovereign Edge – memory.tool_context is a paid API for AI agents from edge.innovalyxx.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-17).

Retrieves a summarized history of prior tool invocations for a given entity and tool name, including hash-chain integrity status and recommended next action.

## Facts

- Endpoint: POST https://edge.innovalyxx.com/mcp/tools/memory.tool_context
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/innovalyxx-sovereign-edge-memory-tool-context-679c4e46
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XzD2VdrLHCqVnpt0Gal2F

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability innovalyxx-sovereign-edge-memory-tool-context-679c4e46 -d '<json body>'
```

Example prompt: Check the tool invocation history for entity 'agent-42' on the 'verify_biodiversity' tool — I need to know how many times it's been called, whether the hash chain is still intact, and what action is recommended next. The owner wallet is 0xAbC1234567890123456789012345678901234AbC.

## When to prefer this

Use this endpoint when an autonomous agent or operator needs to audit the invocation history of a specific tool for a specific entity within the Innovalyxx Sovereign Edge platform, particularly when hash-chain integrity verification and recommended next actions are required. Prefer this over general logging or analytics tools when the context is cyber-physical AI agent trust workflows with on-chain payment and wallet-based access control.

## Known failure modes

- Missing or invalid entity_id returns an error
- wallet_signature fails EIP-191 verification — request rejected as unauthorized
- owner_wallet not exactly 42 characters — validation error
- No invocation records found for the given entity_id and tool_name combination
- Payment via x402/USDC fails — endpoint returns 402 Payment Required
- Hash chain reported as broken (hash_chain_intact: false) indicating potential data tampering

## How this service works

Verified cyber-physical AI tools for autonomous agents. Pay per call via x402 (USDC on Base). 26 tools covering MRV verification, biodiversity, skip twin, site certification, agent trust, transaction evidence, protocol bridging, GEO audit, IATP reputation, ABV maturity, NIST TEVV alignment, and encrypted memory write/read/query/grant/revoke/tool_context/pricing_hint/subscription_quote/attest/verify_attestation.

## Output

Returns a JSON object containing the entity ID, tool name, number of prior invocations, first and last verification timestamps, the last content hash, a boolean indicating whether the hash chain is intact, a recommended next action string, and the timestamp of the query. Payment metadata is also included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "entity_id": {
   "type": "string",
   "minLength": 1,
   "description": "Entity whose prior tool invocations should be summarised."
  },
  "tool_name": {
   "type": "string",
   "minLength": 1,
   "description": "Tool name to look up, e.g. 'verify_biodiversity' or 'request_mrv_report'."
  },
  "owner_wallet": {
   "type": "string",
   "maxLength": 42,
   "minLength": 42,
   "description": "0x-prefixed owner wallet. Only that owner's rows are counted."
  },
  "wallet_signature": {
   "type": "string",
   "description": "EIP-191 signature over the tool-context message."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "memory.tool_context",
  "payment": {},
  "entity_id": "entity_id",
  "tool_name": "tool_name",
  "queried_at": "queried_at",
  "metadata_only": "true",
  "last_verified_at": "last_verified_at",
  "first_verified_at": "first_verified_at",
  "hash_chain_intact": true,
  "last_content_hash": "last_content_hash",
  "prior_invocations": 1,
  "recommended_action": "recommended_action"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/innovalyxx-sovereign-edge-memory-tool-context-679c4e46/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from edge.innovalyxx.com](https://www.zero.xyz/host/edge.innovalyxx.com/llms.txt)